34 AN ACCOUNT OF BRITISH FLIES. 
Legs ferruginous, somewhat darker than body. Coxz notched 
near the posterior joint, on the four hind legs; smaller and not 
notched on the fore legs. Femora short and thick on four posterior 
legs, thin on fore legs, all having a few bristles, ‘Tibiz and tarsi 
with strong bristles, especially on the former on the posterior margin. 
Metatarsi long and thick, first and fifth tarsal joints being the longest. 
Length, about 1 lin. 
This is recorded by Curtis and by Walker as infesting the mole. 
Dale says: ‘‘It is quite certain that Za/pe@ is a misnomer, as it is 
not found on the mole.”* He found this species in a field-mouse’s 
nest. Curtis also mentions one similar to his Za/p@ being given him, 
found on arat. This species has been figured by Curtis.+ 
Genus 3.—TYPHLOPSYLLA, Tasch. 
Body elongated and narrow. Head in many (specimens) very 
long; eyes wanting or rudimentary. On the under side of the head 
are found constantly chitinous bristles, the same on the pronotum, 
and in a number of species also on several abdominal segments 
(Tasch., “ Die Flohe,” p. 86). 
T. octactenus, Kolenati= Ceratophyllus elongatus, Curtis. 
Ochreous, ferruginous, and brown in places; shining, elongated, 
and attenuated towards the head, which is bare. The antennz are 
eight-jointed, pilose, sub-clavate ; the first and second joints being 
large ; the third joint is narrow; the remaining five form an ovate 
club. Maxillze black; black bristles on the thorax and abdomen. 
Eight combs along the back. Abdomen attenuated in front, dilated 
at the apex ; genital valves largely developed. Legs pale yellowish ; 
tibize and tarsi sparingly clothed with long dark hair; claws black. 
This is the description given by Curtis of C. e/ongatus, which is 
parasitic on the yellow bat (V. noctuda). 
TI. muscult, Dugts = ZT. muris, Curtis. 
Dark yellowish-brown. Head covered by short dark hairs, with a 
few almost black bristles in parts. Body attenuated in front. Comb 
only on posterior margin of pronotum. Legs having very few hairs 
or bristles; femora bare and curved ; tibiz with black bristles ; fore 
cox punctate, with black bristles. Four genal spines. 
This species infests Mus musculus, Agrarius, Decumanus, rattus, 
and Avrvicola arvalis. 
* Ent. Mo. Mag., vol. xxvi., p. 161. e 
t Curtis’s “ British Entomology,” plate 114. 
